The Oncologic Outcomes of Inferior Mesenteric Artery-Preserving Laparoscopic Lymph Node Dissection for Upper-Rectal or Sigmoid Colon Cancer

The standard procedure of lymph node (LN) dissection for rectal or sigmoid colon cancer remains controversial. Many laparoscopic surgeons cut the inferior mesenteric artery (IMA) at the root; however, this may cause bowel ischemia around the site of anastomosis. We performed D3 or D2 LN dissection w...

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